$ git clone -n https://src.fedoraproject.org/rpms/chessx.git /var/lib/mock/f39-build-1591591-38292/root/chroot_tmpdir/scmroot/chessx
Cloning into '/var/lib/mock/f39-build-1591591-38292/root/chroot_tmpdir/scmroot/chessx'...
$ git fetch origin 05531c9a26830685b189be0d1ecf282f8500ea6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chessx
 * [new ref]         05531c9a26830685b189be0d1ecf282f8500ea6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05531c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild